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Fibrous nano-carbon and preparation method thereof

  • US 20060008408A1
  • Filed: 10/17/2003
  • Published: 01/12/2006
  • Est. Priority Date: 10/17/2002
  • Status: Abandoned Application
First Claim
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1. A fibrous nanocarbon characterized by carbon hexagonal plane or stacking thereof, having one or both directional growth axis, whereby;

  • (1) the sp2 hybrid carbon content of more than 95% per total content;

    (2) the interlayer spacing (d002, d-spacing of C(002) profiles determined by X-ray diffraction method) of 0.3360 nm˜

    0.3800 nm;

    (3) the (002) plane stacking of more than 4 layers and the aspect ratio of more than 20;

    (4) the fiber cross-section width/thickness of 2.0 nm˜

    800 nm;

    (5) the inclination angle of hexagonal plane alignment for each composed carbon nanofibers to the fiber axis of 0˜

    85 degrees; and

    carbon hexagonal planes stacking along the fiber axis, forming knots (nodes) at intervals of 5 nm˜

    100 nm, sharing partly the structure or stacking layers in carbon hexagonal planes of each composed carbon nanofibers and connecting periodically to each other, consequently forming ladder-like structure with open parts between each connection units, through which the inner side of the fibrous nanocarbon is open and connected to the outer space.

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